# delete specific names in the files.
$stringToRemove = '【TYPE-MOON】「魔法使之夜」Original SoundTrack【深澤秀行】 '
$filelist=Get-ChildItem -Path .
foreach ($file in $filelist) {
    $newname=$file.Name -replace $stringToRemove, ''
    Rename-Item -Path $file.Name -NewName $newname
}